Analogin (90% OFFICIAL)

: On an Arduino board, analog inputs are used to read values from sensors like potentiometers or photoresistors. The analogRead() function typically converts a voltage (0–5V) into a digital integer ranging from 0 to 1023.

The process of mapping continuous analog values to a finite set of digital levels.

The number of bits used to represent the signal; higher resolution (e.g., 12-bit or 16-bit) provides more precision.